The Frankfurt School introduced the focus group to Germany

Evidence

The procedure, which the Frankfurt group was the first to use in Germany, developing it further during the 1950s and turning it into a recognized technique of social research, was in principle as follows. … A `basic stimulus’ can provide the starting-point for the discussion. … (In the Institute’s group study, a fictional open letter from a sergeant of the Allied forces to his local newspaper after five years’ service in the army of occupation was played back from tape. … The fieldworker, equipped with a tape recorder and accompanied by an assistant who was to note any reactions or occurrences not registered on the tape, was to function as a neutral chairman whose most important task was to ensure a discussion that was as free as possible and encouraged spontaneous statements. — Rolf Wiggershaus, The Frankfurt School, 1872

Categorization

• XREF: Contradicts the common folk-history that focus groups arrived in Europe via mid-century American marketing; here it’s a Frankfurt critical-theory import. — connects to: The Frankfurt group pioneered Germany’s group discussion technique for social research — Rolf Wiggershaus, The Frankfurt School: Its History,…, 1872
• SEED: A genealogy essay could credibly argue that the modern focus group descends from critical theory — Adorno and Horkheimer’s group-discussion procedure — not just from marketing research.

Broader Connections

• The Frankfurt group pioneered Germany’s group discussion technique for social research #corroborates (0.90) — Rolf Wiggershaus, The Frankfurt School, 1872